Question

Find the current if resistors A=5ohm,B=10ohm,,c=10 ohm

Answer 1

Answer:

(a) (i) For minimum current we must make R maximum. This can be done by connecting the resistances in series.

(ii) For maximum current we must make R minimum. This can be done by connecting the resistances in parallel.

(b) (i)R

eq

=R

1

+R

2

=5+10=15Ω

I=

R

eq

V

=

15

6

=0.4A

(ii) R

eq

=

R

1

+R

2

R

1

R

2

=

5+10

5×10

=3.33Ω

I=

R

eq

V

=

3.33

6

=1.8A